This is a familiar garden plant, and is often
spread from dumping of garden refuse. It is used as a culinary herb.

Similar species: Pennyroyal is a smaller plant with clusters of mauve to
pale lilac flowers.
Lemon Mint has lilac to pink flowers, and the leaf-veins are less deeply impressed.
Many different varieties of mints are grown in gardens, and some of the wild populations may be
hybrids.